桩墩间距对冰荷载及过冰能力影响的实验研究

Experimental Research on Influence of Spacing Between Pile Piers on Ice Load and Ice-passing Capacity

在我国北方的水工结构物的设计建造中,通常要考虑流冰对结构的作用,并且桩墩的间距也是被关注的内容之一。文章主要针对单闸墩、双闸墩间距以及多桩间距对冰荷载的影响进行了模型实验研究,通过定间距闸墩模型实验,以及系列桩间距的模型实验和数据分析,获得了间距对闸墩和桩的冰荷载影响的依据,并得到桩间距与冰荷载的关系曲线,可供相关人员参考。所进行的研究初步论述了浮冰在桩墩结构物前堵塞或通过的条件,并提出了有待进一步研究的新课题。

The action of ice on structures needs usually to be considered in design and construction of hydraulic structures in North China. The spacing between pile piers is also a factor of attention. Model experiment was carried out for research on the influence of spacing between single and double lock piers and spacing between piles on the ice load. Through model experiment of fixed-spaced lock piers and model experiment of spacing between serial piles, and according to the data analysis, the causes of the influence of spacings on lock pier and ice load was got and the relation curve between piles＂ spacing and ice load was obtained. According to the research, we describe the condition of ice＇s blockage or passing of floating ice in front of pile piers, and put forward new research subject needing further approaches.